Color

#2fa5f4

#2fa5f4
hex#2fa5f4
rgbrgb(47, 165, 244)
hslhsl(204, 90%, 57%)
oklchoklch(0.695 0.153 243.7)
Closest name: Cerulean (#55aaee)Relative luminance 0.3405

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#f47e2f

#2ff4e0 · #2f42f4

#f42fa5 · #a5f42f

Split-complementary

Open in tool →

#f42f42 · #f4e02f

#e02ff4 · #f47e2f · #42f42f

Contrast

#2fa5f4 as textRatioAAAA largeAAAFix
Aaon white
2.69:1failfailfail
  • AA: use #0a78c2 as the text (4.69:1)
  • AAA: use #085a91 as the text (7.29:1)
  • AA: or shift the background to #333333 (4.7:1)
  • AAA: or shift the background to #0f0f0f (7.13:1)
Aaon black
7.81:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2fa5f4 as the background.

Brands using this color

Fonts for this mood

#2fa5f4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2fa5f4
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #2fa5f4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2fa5f4-9cafc4-df4e5a-1f222d-e9f1f0?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md